/*
 * This file contains code from "C++ Primer, Fourth Edition", by Stanley B.
 * Lippman, Jose Lajoie, and Barbara E. Moo, and is covered under the
 * copyright and warranty notices given in that book:
 *
 * "Copyright (c) 2005 by Objectwrite, Inc., Jose Lajoie, and Barbara E. Moo."
 *
 *
 * "The authors and publisher have taken care in the preparation of this book,
 * but make no expressed or implied warranty of any kind and assume no
 * responsibility for errors or omissions. No liability is assumed for
 * incidental or consequential damages in connection with or arising out of the
 * use of the information or programs contained herein."
 *
 * Permission is granted for this code to be used for educational purposes in
 * association with the book, given proper citation if and when posted or
 * reproduced.Any commercial use of this code requires the explicit written
 * permission of the publisher, Addison-Wesley Professional, a division of
 * Pearson Education, Inc. Send your request for permission, stating clearly
 * what code you would like to use, and in what specific way, to the following
 * address:
 *
 *  Pearson Education, Inc.
 *  Rights and Contracts Department
 *  75 Arlington Street, Suite 300
 *  Boston, MA 02216
 *  Fax: (617) 848-7047
*/

#include <fstream>

// ---- Sales_item.h ----
namespace cplusplus_primer
{
class Sales_item
{
	/* . . . */
};
Sales_item operator+(const Sales_item&,
					 const Sales_item&);
// declarations for remaining functions in the Sales_item interface
}

// ---- Query.h ----
namespace cplusplus_primer
{
class Query
{
public:
	Query(const std::string&);
	std::ostream& display(std::ostream&) const;
	//...
};
class Query_base
{
	/* . . . */
};
}

// ---- Sales_item.cc ----

namespace cplusplus_primer
{
// definitions for Sales_item members and overloaded operators
}

// ---- Query.cc ----
namespace cplusplus_primer
{
// definitions for Query members and related functions
}
